\documentclass[UTF8, 11pt, oneside]{ctexbook}
\include{styles}
\include{tikz-snippets}

\begin{document}

\include{title-page}

\frontmatter
\include{units/explanation}

\tableofcontents
\thispagestyle{empty}

\mainmatter
\include{units/chapter-1}
\include{units/chapter-2}
\include{units/chapter-3}

\appendix
\include{units/appendix-1}
\include{units/appendix-2}

\end{document}
